86 UNIVALVES. CYPR.EA. 



DIVISION III. UMBILICATED. 



Onyx Onyx. Hirundo Swallow. 



Subflava Yellowish. Ursellus Brown-spot. 



Clandestina Clandestine. Lutea Yellow. 



Succincta Banded. Asellus Three-banded. 



Ziczac Ziczac. Errones Olive-mottled. 



Zonata Zoned. Pyrum Pear. 



Punctata Dotted. 



DIVISION IV. WITH THE MARGIN THICKENED. 



Moneta Money. Stolida Square-spotted. 



Annulus Annular. Tabescens Slender. 



Caurica Thick-edg'd. Helvola Star. 



Dracaena Angular-marked. Angustata Narrow. 



Cruenta Ferruginous. Ocellata Eyed. 



Cribraria Umbilicated. Albuginosa Bird's-eye. 



Erosa Bordered. Poraria White-spot. 



Flaveola Ochreous. Gangranosa Gangrene. 



Spurca Narrow -margined. Fimbriata Fimbriated. 

 Tessellata Mosaic. 



DIVISION V. WITH THE BACKS RIBBED, WRINKLED, OR 



TUBERCULATED. 



Oniscus Woodlouse. Europea European. 



Sulcata Sulcated. Ma.&agasca.riens\s-Madagascar. 



Aperta Wide-mouth' d. Pustulata Pustulated. 



DIVISION VI. BEAKED AT THE EXTREMITIES. 



FAMILY 1. Having raised dots on the back. 

 Nucleus Wrinkled. Staphylea Groove-back' d. 



Cicercula Vetch. 



FAMILY 2. With the back smooth. 

 Margarita Pearl. Globulus Globular. 



